earmuff

[ eer-muhf ]
/ ˈɪərˌmʌf /

noun

either of a pair of often adjustable coverings for protecting the ears in cold weather.

Origin of earmuff

An Americanism dating back to 1855–60; ear1 + muff

British Dictionary definitions for earmuff

earmuff
/ (ˈɪəˌmʌf) /

noun

one of a pair of pads of fur or cloth, joined by a headband, for keeping the ears warm